Update ci.yml (rustfmt) (#22) #612

Job	Run time
test (1.70.0, x86_64-pc-windows-msvc, windows-2019)	18m 5s
rustfmt	45s
test (1.70.0, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	19m 40s
test (1.70.0, x86_64-unknown-linux-gnu, ubuntu-latest)	9m 4s
test (1.70.0, x86_64-apple-darwin, macos-latest)	16m 26s
test (stable, x86_64-pc-windows-msvc, windows-2019)	20m 18s
test (stable, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	20m 56s
test (stable, x86_64-unknown-linux-gnu, ubuntu-latest)	9m 0s
test (stable, x86_64-apple-darwin, macos-latest)	22m 39s
test (beta, x86_64-pc-windows-msvc, windows-2019)	19m 16s
test (beta, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	17m 58s
test (beta, x86_64-unknown-linux-gnu, ubuntu-latest)	8m 4s
test (beta, x86_64-apple-darwin, macos-latest)	14m 55s
test (nightly, x86_64-pc-windows-msvc, windows-2019)	19m 34s
test (nightly, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	18m 39s
test (nightly, x86_64-unknown-linux-gnu, ubuntu-latest)	8m 10s
test (nightly, x86_64-apple-darwin, macos-latest)	13m 12s
	4h 16m 41s

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